Home / 72,672,563.56-108,964,938.42-28,960,046.92

Finding the Fourth Proportional to 72,672,563.56, 108,964,938.42 and 28,960,046.92

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Solution

The fourth proportional to 72,672,563.56, 108,964,938.42 and 28,960,046.92 is: 43,422,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,672,563.56 : 108,964,938.42 = 28,960,046.92 : x
  2. Step 2: Convert to fraction form
    72,672,563.56/108,964,938.42 = 28,960,046.92/x
  3. Step 3: Cross multiply
    72,672,563.56x = 108,964,938.42 × 28,960,046.92
  4. Step 4: Simplify right side
    72,672,563.56x = 3,155,629,729,278,111
  5. Step 5: Solve for x
    x = 3,155,629,729,278,111/72,672,563.56
  6. Step 6: Final answer
    x = 43,422,573.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.